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Industrial Organic Chemicals, Sterling, Colorado. NPDES permit CO0047066 expired Apr 30, 2018; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Oxygen, dissolved [DO] | minimum | ≥ 3 mg/L | all year |
| BOD, 5-day, 20 deg. C | 30-day average | ≤ 30 mg/L | all year |
| BOD, 5-day, 20 deg. C | maximum 7-day average | ≤ 45 mg/L | all year |
| pH | minimum | ≥ 6 SU | all year |
| pH | maximum | ≤ 9 SU | all year |
| Nitrite + Nitrate total [as N] | daily maximum | ≤ 100 mg/L | all year |
| Oil and grease | instantaneous maximum | ≤ 10 mg/L | all year |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .37 MGD | all year |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year |
| Solids, total dissolved | 30-day average | report only (mg/L) | all year |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year |
| Boron, total | 30-day average | ≤ .75 mg/L | all year |
| Boron, total | 30-day average | ≤ 2 mg/L | all year |
| Oil and grease visual | instantaneous maximum | report only (N=0;Y=1) | all year |
Cited limits by parameter: Colorado's rules and the federal ones.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/CO0047066 · MCP: https://passage-data.com/mcp